From cb8a6dbd176ee59d61068bed92e2c8d22bd28b13 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 30 Oct 2013 13:20:52 +1000 Subject: rename configure.in to configure.ac Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger --- configure.in | 2172 ---------------------------------------------------------- 1 file changed, 2172 deletions(-) delete mode 100644 configure.in (limited to 'configure.in') diff --git a/configure.in b/configure.in deleted file mode 100644 index a7f9881349..0000000000 --- a/configure.in +++ /dev/null @@ -1,2172 +0,0 @@ -dnl Process this file with autoconf to produce a configure script. -dnl Note we do not use AC_PREREQ here! 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- sparc*) - libc_commonpagesize=0x2000 - libc_relro_required=yes - ;; -esac - -if test $libc_commonpagesize != no; then - AC_CACHE_CHECK(for -z relro option, - libc_cv_z_relro, [dnl - libc_cv_z_relro=no - AC_LANG_CONFTEST([AC_LANG_SOURCE([[ -int _start (void) { return 42; } -extern void _exit (int); -/* Since these pointers are const, they should go in rodata. - Since they refer to functions that have to be resolved by - dynamic linking, they should instead go in RELRO data. */ -const void *const relro[] = { &_start, &_exit, 0 }; -/* GNU ld fails to produce RELRO data when it's very small and there is no - normal writable data following it, or if only uninitialized (.bss) data - follows it, or only very small writable data. */ -int data[0x10000] = { 1, }; -]])]) - cat > conftest.awk <<\EOF -BEGIN { - result = "no" - commonpagesize = strtonum(commonpagesize) -} -{ print "LINE:", $0 > "/dev/stderr" } -$1 == "GNU_RELRO" { - vaddr = strtonum($3) - memsz = strtonum($6) - end = vaddr + memsz - printf "vaddr %#x memsz %#x end %#x commonpagesize %#x\n", \ - vaddr, memsz, end, commonpagesize > "/dev/stderr" - result = (end % commonpagesize == 0) ? "yes" : "broken" -} -END { print result } -EOF - AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -fPIC -shared -o conftest.so conftest.c - -nostartfiles -nostdlib - -Wl,-z,relro 1>&AS_MESSAGE_LOG_FD]) && - AC_TRY_COMMAND([$READELF -Wl conftest.so > conftest.ph]) && - AC_TRY_COMMAND([ - $AWK -v commonpagesize=$libc_commonpagesize -f conftest.awk - conftest.ph > conftest.cps - ]) && - libc_cv_z_relro=`cat conftest.cps 2>&AS_MESSAGE_LOG_FD` - rm -f conftest*]) - if { test "x$libc_relro_required" = xyes && - test "x$libc_cv_z_relro" != xyes - } - then - AC_MSG_ERROR(linker with -z relro support required) - fi -else - AC_MSG_WARN([missing architecture parameter to check for working -z relro]) -fi - -AC_CACHE_CHECK(for -Bgroup option, - libc_cv_Bgroup, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) -then - libc_cv_Bgroup=yes -else - libc_cv_Bgroup=no -fi -rm -f conftest*]) -AC_SUBST(libc_cv_Bgroup) - -ASFLAGS_config= -AC_CACHE_CHECK(whether --noexecstack is desirable for .S files, - libc_cv_as_noexecstack, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) \ - && grep .note.GNU-stack conftest.s >/dev/null \ - && AC_TRY_COMMAND([${CC-cc} $ASFLAGS -Wa,--noexecstack - -c -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD]) -then - libc_cv_as_noexecstack=yes -else - libc_cv_as_noexecstack=no -fi -rm -f conftest*]) -if test $libc_cv_as_noexecstack = yes; then - ASFLAGS_config="$ASFLAGS_config -Wa,--noexecstack" -fi -AC_SUBST(ASFLAGS_config) - -AC_CACHE_CHECK(for -z combreloc, - libc_cv_z_combreloc, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) -then -dnl The following test is a bit weak. We must use a tool which can test -dnl cross-platform since the gcc used can be a cross compiler. Without -dnl introducing new options this is not easily doable. Instead use a tool -dnl which always is cross-platform: readelf. To detect whether -z combreloc -dnl look for a section named .rel.dyn. - if $READELF -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then - libc_cv_z_combreloc=yes - else - libc_cv_z_combreloc=no - fi -else - libc_cv_z_combreloc=no -fi -rm -f conftest*]) -if test "$libc_cv_z_combreloc" = yes; then - AC_DEFINE(HAVE_Z_COMBRELOC) -fi -AC_SUBST(libc_cv_z_combreloc) - -LIBC_LINKER_FEATURE([-z execstack], [-Wl,-z,execstack], - [libc_cv_z_execstack=yes], [libc_cv_z_execstack=no]) -AC_SUBST(libc_cv_z_execstack) - -AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl -LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no]) -]) - -AC_SUBST(libc_cv_fpie) - -AC_CACHE_CHECK(for --hash-style option, - libc_cv_hashstyle, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) -then - libc_cv_hashstyle=yes -else - libc_cv_hashstyle=no -fi -rm -f conftest*]) -AC_SUBST(libc_cv_hashstyle) - -# The linker's default -shared behavior is good enough if it -# does these things that our custom linker scripts ensure that -# all allocated NOTE sections come first. -if test "$use_default_link" = default; then - AC_CACHE_CHECK([for sufficient default -shared layout], - libc_cv_use_default_link, [dnl - libc_cv_use_default_link=no - cat > conftest.s <<\EOF - .section .note.a,"a",%note - .balign 4 - .long 4,4,9 - .string "GNU" - .string "foo" - .section .note.b,"a",%note - .balign 4 - .long 4,4,9 - .string "GNU" - .string "bar" -EOF - if AC_TRY_COMMAND([dnl - ${CC-cc} $ASFLAGS -shared -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD]) && - ac_try=`$READELF -S conftest.so | sed -n \ - ['${x;p;} - s/^ *\[ *[1-9][0-9]*\] *\([^ ][^ ]*\) *\([^ ][^ ]*\) .*$/\2 \1/ - t a - b - : a - H']` - then - libc_seen_a=no libc_seen_b=no - set -- $ac_try - while test $# -ge 2 -a "$1" = NOTE; do - case "$2" in - .note.a) libc_seen_a=yes ;; - .note.b) libc_seen_b=yes ;; - esac - shift 2 - done - case "$libc_seen_a$libc_seen_b" in - yesyes) - libc_cv_use_default_link=yes - ;; - *) - echo >&AS_MESSAGE_LOG_FD "\ -$libc_seen_a$libc_seen_b from: -$ac_try" - ;; - esac - fi - rm -f conftest*]) - use_default_link=$libc_cv_use_default_link -fi - -AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl -if libc_cv_output_format=` -${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD` -then - : -else - libc_cv_output_format= -fi -test -n "$libc_cv_output_format" || libc_cv_output_format=unknown]) -AC_SUBST(libc_cv_output_format) - -AC_CACHE_CHECK(for -fno-toplevel-reorder -fno-section-anchors, libc_cv_fno_toplevel_reorder, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) -then - libc_cv_fno_toplevel_reorder=yes -else - libc_cv_fno_toplevel_reorder=no -fi -rm -f conftest*]) -if test $libc_cv_fno_toplevel_reorder = yes; then - fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors" -else - fno_unit_at_a_time=-fno-unit-at-a-time -fi -AC_SUBST(fno_unit_at_a_time) - -AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl -LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector], - [libc_cv_ssp=yes], - [libc_cv_ssp=no]) -]) -AC_SUBST(libc_cv_ssp) - -AC_CACHE_CHECK(for -fgnu89-inline, libc_cv_gnu89_inline, [dnl -cat > conftest.c <&AS_MESSAGE_LOG_FD]) -then - libc_cv_gnu89_inline=yes -else - libc_cv_gnu89_inline=no -fi -rm -f conftest*]) -if test $libc_cv_gnu89_inline = yes; then - gnu89_inline=-fgnu89-inline -else - gnu89_inline= -fi -AC_SUBST(gnu89_inline) - -AC_CACHE_CHECK(whether cc puts quotes around section names, - libc_cv_have_section_quotes, - [cat > conftest.c </dev/null; then - libc_cv_have_section_quotes=yes - else - libc_cv_have_section_quotes=no - fi - else - libc_cv_have_section_quotes=unknown - fi - rm -f conftest.{c,s} - ]) -if test $libc_cv_have_section_quotes = yes; then - AC_DEFINE(HAVE_SECTION_QUOTES) -fi - -AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, - [dnl -cat > conftest.s <&AS_MESSAGE_LOG_FD); then - libc_cv_asm_weak_directive=yes -else - libc_cv_asm_weak_directive=no -fi -rm -f conftest*]) - -if test $libc_cv_asm_weak_directive = no; then - AC_CACHE_CHECK(for assembler .weakext directive, - libc_cv_asm_weakext_directive, - [dnl -cat > conftest.s <&AS_MESSAGE_LOG_FD); then - libc_cv_asm_weakext_directive=yes - else - libc_cv_asm_weakext_directive=no - fi - rm -f conftest*]) - -fi # no .weak - -if test $libc_cv_asm_weak_directive = yes; then - AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) -elif test $libc_cv_asm_weakext_directive = yes; then - AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) -fi - -AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl -case $machine in - sparc/sparc64*) cfi_offset=2047;; - *) cfi_offset=0;; -esac -cat > conftest.s <&AS_MESSAGE_LOG_FD); then - libc_cv_asm_cfi_directives=yes -else - libc_cv_asm_cfi_directives=no -fi -rm -f conftest*]) -if test $libc_cv_asm_cfi_directives = yes; then - AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) -fi - -AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl -cat > conftest.c <<\EOF -_start () {} -int __eh_pc; -__throw () {} -EOF -dnl No \ in command here because it ends up inside ''. -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -nostdlib -nostartfiles -Wl,--no-whole-archive - -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then - libc_cv_ld_no_whole_archive=yes -else - libc_cv_ld_no_whole_archive=no -fi -rm -f conftest*]) -if test $libc_cv_ld_no_whole_archive = no; then - AC_MSG_ERROR([support for --no-whole-archive is needed]) -fi - -AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl -cat > conftest.c <<\EOF -_start () {} -int __eh_pc; -__throw () {} -EOF -dnl No \ in command here because it ends up inside ''. -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -nostdlib -nostartfiles -fexceptions - -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then - libc_cv_gcc_exceptions=yes -else - libc_cv_gcc_exceptions=no -fi -rm -f conftest*]) -if test $libc_cv_gcc_exceptions = yes; then - exceptions=-fexceptions -fi -AC_SUBST(exceptions)dnl - -if test "$host_cpu" = powerpc ; then -# Check for a bug present in at least versions 2.8.x of GCC -# and versions 1.0.x of EGCS. -AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl -AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, - libc_cv_c_asmcr0_bug='no', - libc_cv_c_asmcr0_bug='yes')]) -if test "$libc_cv_c_asmcr0_bug" != 'no'; then - AC_DEFINE(BROKEN_PPC_ASM_CR0) -fi -fi - -AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl -cat > conftest.c <<\EOF -void zero (void *x) -{ - __builtin_memset (x, 0, 1000); -} -EOF -dnl -if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]); -then - libc_cv_gcc_builtin_memset=no -else - libc_cv_gcc_builtin_memset=yes -fi -rm -f conftest* ]) -if test "$libc_cv_gcc_builtin_memset" = yes ; then - AC_DEFINE(HAVE_BUILTIN_MEMSET) -fi - -AC_CACHE_CHECK(for redirection of built-in functions, libc_cv_gcc_builtin_redirection, [dnl -cat > conftest.c <<\EOF -extern char *strstr (const char *, const char *) __asm ("my_strstr"); -char *foo (const char *a, const char *b) -{ - return __builtin_strstr (a, b); -} -EOF -dnl -if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "my_strstr" > /dev/null]); -then - libc_cv_gcc_builtin_redirection=yes -else - libc_cv_gcc_builtin_redirection=no -fi -rm -f conftest* ]) -if test "$libc_cv_gcc_builtin_redirection" = no; then - AC_MSG_ERROR([support for the symbol redirection needed]) -fi - -dnl Check whether the compiler supports the __thread keyword. -AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread, -[cat > conftest.c <<\EOF -__thread int a = 42; -EOF -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD]); then - libc_cv_gcc___thread=yes -else - libc_cv_gcc___thread=no -fi -rm -f conftest*]) -if test "$libc_cv_gcc___thread" = no; then - AC_MSG_ERROR([support for the __thread keyword is required]) -fi - -dnl Check whether the compiler supports the tls_model attribute. -AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl -cat > conftest.c <<\EOF -extern __thread int a __attribute__((tls_model ("initial-exec"))); -EOF -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -Werror conftest.c >&AS_MESSAGE_LOG_FD]); then - libc_cv_gcc_tls_model_attr=yes -else - libc_cv_gcc_tls_model_attr=no -fi -rm -f conftest*]) -if test "$libc_cv_gcc_tls_model_attr" = no; then - AC_MSG_ERROR([support for the tls_model attribute is required]) -fi - -dnl Determine how to disable generation of FMA instructions. -AC_CACHE_CHECK([for compiler option to disable generation of FMA instructions], - libc_cv_cc_nofma, [dnl -libc_cv_cc_nofma= -for opt in -ffp-contract=off -mno-fused-madd; do - LIBC_TRY_CC_OPTION([$opt], [libc_cv_cc_nofma=$opt; break]) -done]) -AC_SUBST(libc_cv_cc_nofma) - -if test -n "$submachine"; then - AC_CACHE_CHECK([for compiler option for CPU variant], - libc_cv_cc_submachine, [dnl - libc_cv_cc_submachine=no - for opt in "-march=$submachine" "-mcpu=$submachine"; do - LIBC_TRY_CC_OPTION([$opt], [ - libc_cv_cc_submachine="$opt" - break], []) - done]) - if test "x$libc_cv_cc_submachine" = xno; then - AC_MSG_ERROR([${CC-cc} does not support $submachine]) - fi -fi -AC_SUBST(libc_cv_cc_submachine) - -AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \ -__attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl -cat > conftest.c <], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no) - CFLAGS="$old_CFLAGS" - LDFLAGS="$old_LDFLAGS" - LIBS="$old_LIBS" -else - LIBGD=no -fi -AC_MSG_RESULT($LIBGD) -AC_SUBST(LIBGD) - -# SELinux detection -if test x$with_selinux = xno ; then - have_selinux=no; -else - # See if we have the SELinux library - AC_CHECK_LIB(selinux, is_selinux_enabled, - have_selinux=yes, have_selinux=no) - # See if we have the SELinux header with the NSCD permissions in it. - if test x$have_selinux = xyes ; then - AC_MSG_CHECKING([for NSCD Flask permissions in selinux/av_permissions.h]) - AC_TRY_COMPILE([#include ], - [#ifdef NSCD__SHMEMHOST - return 0; - #else - #error NSCD__SHMEMHOST not defined - #endif], - have_selinux=yes, have_selinux=no) - AC_MSG_RESULT($have_selinux) - fi - - if test x$with_selinux = xyes ; then - if test x$have_selinux = xno ; then - AC_MSG_ERROR([SELinux explicitly required, but sufficiently recent SELinux library not found]) - fi - fi -fi -# Check if we're building with SELinux support. -if test "x$have_selinux" = xyes; then - AC_DEFINE(HAVE_SELINUX, 1, [SELinux support]) - - # See if we have the libaudit library - AC_CHECK_LIB(audit, audit_log_user_avc_message, - have_libaudit=yes, have_libaudit=no) - if test "x$have_libaudit" = xyes; then - AC_DEFINE(HAVE_LIBAUDIT, 1, [SELinux libaudit support]) - fi - AC_SUBST(have_libaudit) - - # See if we have the libcap library - AC_CHECK_LIB(cap, cap_init, have_libcap=yes, have_libcap=no) - if test "x$have_libcap" = xyes; then - AC_DEFINE(HAVE_LIBCAP, 1, [SELinux libcap support]) - fi - AC_SUBST(have_libcap) -fi -AC_SUBST(have_selinux) - -dnl check for the size of 'long double'. -AC_CHECK_SIZEOF(long double, 0) -sizeof_long_double=$ac_cv_sizeof_long_double -AC_SUBST(sizeof_long_double) - -CPPUNDEFS= -dnl Check for silly hacked compilers predefining _FORTIFY_SOURCE. -dnl Since we are building the implementations of the fortified functions here, -dnl having the macro defined interacts very badly. -AC_CACHE_CHECK([for _FORTIFY_SOURCE predefine], libc_cv_predef_fortify_source, -[AC_TRY_COMPILE([], [ -#ifdef _FORTIFY_SOURCE -# error bogon -#endif], - [libc_cv_predef_fortify_source=no], - [libc_cv_predef_fortify_source=yes])]) -if test $libc_cv_predef_fortify_source = yes; then - CPPUNDEFS="${CPPUNDEFS:+$CPPUNDEFS }-U_FORTIFY_SOURCE" -fi -AC_SUBST(CPPUNDEFS) - -dnl Check for silly hacked compilers inserting -fstack-protector. -dnl This breaks badly for the early startup code we compile, since -dnl the compiled code can refer to a magic machine-dependent location -dnl for the canary value before we have sufficient setup for that to -dnl work. It's also questionable to build all of libc with this flag -dnl even when you're doing that for most applications you build, since -dnl libc's code is so heavily-used and performance-sensitive. 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